{ Tur*quoise", Tur*quois" } (?; 277), n. [F. turquoise; cf. Pr. & Sp. turquesa, It. turchese, turchina, LL. turchesius, turchina; -- so called because first brought from Turkey. See 1st Turkey.] (Min.) A hydrous phosphate of alumina containing a little copper; calaite. It has a blue, or bluish green, color, and usually occurs in reniform masses with a botryoidal surface. [Formerly written also turcois, and turkois.]

&fist; Turquoise is susceptible of a high polish, and when of a bright blue color is much esteemed as a gem. The finest specimens come from Persia. It is also found in New Mexico and Arizona, and is regarded as identical with the chalchihuitl of the Mexicans.

Tur*quoise", a. Having a fine light blue color, like that of choice mineral turquoise.

{ Tur*quoise", Tur*quois" } (?; 277), n. [F. turquoise; cf. Pr. & Sp. turquesa, It. turchese, turchina, LL. turchesius, turchina; -- so called because first brought from Turkey. See 1st Turkey.] (Min.) A hydrous phosphate of alumina containing a little copper; calaite. It has a blue, or bluish green, color, and usually occurs in reniform masses with a botryoidal surface. [Formerly written also turcois, and turkois.]

&fist; Turquoise is susceptible of a high polish, and when of a bright blue color is much esteemed as a gem. The finest specimens come from Persia. It is also found in New Mexico and Arizona, and is regarded as identical with the chalchihuitl of the Mexicans.

Tur*quoise", a. Having a fine light blue color, like that of choice mineral turquoise.

• a greenish-blue or greenish-gray semi-precious gemstone.
  
• a pale greenish-blue colour, like that of the gemstone.
       turquoise colour:   
  
• turquoise blue
  
• having a pale greenish-blue colour.